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/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
cpp-ethereum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file WhisperPeer.h
* @author Gav Wood <i@gavwood.com>
* @date 2014
*/
#pragma once
#include <mutex>
#include <array>
#include <set>
#include <memory>
#include <utility>
#include <libdevcore/RLP.h>
#include <libdevcore/Guards.h>
#include <libdevcore/SHA3.h>
#include "Common.h"
#include "Message.h"
namespace dev
{
namespace shh
{
using p2p::Session;
using p2p::HostCapabilityFace;
using p2p::HostCapability;
using p2p::Capability;
using p2p::CapDesc;
class WhisperPeer: public Capability
{
friend class WhisperHost;
public:
WhisperPeer(std::shared_ptr<Session> _s, HostCapabilityFace* _h, unsigned _i, CapDesc const& _cap);
virtual ~WhisperPeer();
WhisperHost* host() const;
static std::string name() { return "shh"; }
static u256 version() { return WhisperProtocolVersion; }
static unsigned messageCount() { return PacketCount; }
TopicBloomFilterHash bloom() const { dev::Guard g(x_bloom); return m_bloom; }
void sendTopicsOfInterest(TopicBloomFilterHash const& _bloom); ///< sends our bloom filter to remote peer
void noteAdvertiseTopicsOfInterest() { dev::Guard g(x_advertiseTopicsOfInterest); m_advertiseTopicsOfInterest = true; }
private:
virtual bool interpret(unsigned _id, RLP const&) override;
void sendMessages();
unsigned ratingForPeer(Envelope const& e) const;
void noteNewMessage(h256 _h, Envelope const& _m);
void setBloom(TopicBloomFilterHash const& _b) { dev::Guard g(x_bloom); m_bloom = _b; }
mutable dev::Mutex x_unseen;
std::multimap<unsigned, h256> m_unseen; ///< Rated according to what they want.
std::chrono::system_clock::time_point m_timer = std::chrono::system_clock::now();
mutable dev::Mutex x_bloom;
TopicBloomFilterHash m_bloom; ///< Peer's topics of interest
mutable dev::Mutex x_advertiseTopicsOfInterest;
bool m_advertiseTopicsOfInterest;
};
}
}